Patent GB-703336-A (GB)
Title: Improvements in or relating to printing machines
IPC: B41L47/24
Filed: 1951-04-13
Abstract: 703,336. Printing-machines; feeding webs. ADDRESSOGRAPH-MULTIGRAPH CORPORATION. April 13, 1951 [July 22, 1950], No. 8650/51. Classes 100 (1) and 100 (2). [Also in Group VIII] Addressing-machines; cylinder machines.-An attachment is provided for a printing machine of the type equipped to pass embossed printing plates in succession from a supply to a printing station at which imprints can be made from said plates, on sheets or a web with the aid of a printing member such as a platen roller and then to pass the plates from the printing station to a collecting station, which attachment serves to convert the machine for printing from a continuous strip instead of from plates, said strip bearing a succession of legends thereon that can be conditioned to render them reproduceable, and includes a feed mechanism for withdrawing said strip from a supply reel, intermittently feeding it to said printing station, where the strip is arranged to coact with the printing member of the printing machine and then re-winding it on a wind-up reel, and a strip-conditioning mechanism between said supply reel and said printing station for applying a fluid rendering the strip legends reproducable, both said feed mechanism and said conditioning mechanism being arranged for operative connection to printing member actuating means of the printing machine so that they can be driven in the proper timed relation to the operation of said printing member. The master strip M, Fig. 2, having spaced along it a series of lithographic images, is fed through a moistening and inking unit 202 and intermittently past a printing position defined by an anvil A, Fig. 27, and a platen roller PR. At the same time a web to be printed on is fed intermittently past the printing position perpendicularly to the strip. The platen roller is lowered to press the master strip down on to the web, the image being on the lower face of the strip, and is rolled rearwardly over the strip and web to print on the web, which is then fed forwards, cut into sheets each containing a certain number of printed addresses, and delivered into a collecting hopper. The platen roller has resilient printing faces PF and is mounted for reciprocation and raising and lowering on a carriage C guided on a plate 104 and reciprocated by means of a rock shaft 109, the mechanism being mounted on the head H of a diagonally extending printing arm 103 above the table top T. The platen is arranged and operated as described in detail in Specification 555,033. The strip M is supported in the vicinity of the platen by guides 410 carried by bars 406 supported on parallel links 403, and the platen roller shaft 106 runs in slots 406s in the bars 406, so that as the platen roller is raised and lowered the strip moves up and down with it. A pedal and a hand lever are provided either of which are effective to engage a one-revolution clutch to connect the main drive shaft of the machine to a continuously driven pulley, and to engage a second clutch to actuate the platen mechanism, an eccentric forming the driven member of the clutch oscillating the shaft 109. A drive shaft 325, Fig. 14, for part of the feed mechanism of the strip M and for the moistening and inking mechanism, is driven by gearing from the main shaft. Feeding webs.-The web S, Fig. 25, is fed from a supply reel at the rear of the machine, across printing position, and into a chute 179, by feed rollers on a shaft which is moved intermittently by a ratchet mechanism on one end of a shaft 164, which is itself driven by ratchet mechanism 165 on its other end, actuated from the shaft 109 through a link 171. The web is thereby fed past a cutting device 175 operated at pre-determined intervals by a cam 178 on the shaft 164. At the bottom of the chute 179, there is a belt sheet-feeder actuated through a link 183 to deliver the sheets rearwardly into the collecting hopper. The strip M, Figs. 2 and 4, is fed continuously from a reel 201, provided with a permanent brake, by a feed roller 270 driven from the shaft 325, and thence passes over a diablo roller 290 to a pin feeding wheel 203 driven intermittently by a rocking pawl mechanism 220 actuated by a rock shaft 224 driven from the rock shaft 109. The shaft 325 is normally driven from the main shaft by means of a shaft 265, ratchet 356 and sleeve 355. When the length of strip between the unit 202 and wheel 203 becomes too short owing to too great tension, the roller 290 is pulled to the right and closes a switch to an overdrive motor which drives the shaft 325 at a higher speed through a pinion 363, sleeve 364 and ratchet 367, in which case the ratchet 356 overdrives with respect to its pawl 358. The strip then passes the printing position and to a second pin feeding wheel 204 driven in synchronism with the wheel 203 by a link 230. A second diablo roller 291 is provided, and when this moves downwards as a result of the wheel 204 feeding the web, it closes a switch 232A to operate a motor 237 for the rewind reel 205. Damping-apparatus; inking-apparatus.-The strip M, Fig. 4, passes over a moistening roller 266 which is driven by the shaft 325 oppositely to the strip feed, and a molleton-covered roller 275M driven by roller 266 in the direction of feed. Both rollers 266, 275M apply moisture to the strip, and the feed roller 270, which is also molleton-covered, has a blotting effect. Moisture is supplied from a reservoir 272 by a fountain roller 273, messenger roller 276 and roller 275. The fountain roller is moved intermittently from the shaft 325 by means of an eccentric and a rocking pawl mechanism, and the roller 276 is swung between rollers 272, 275 from the shaft 325 by means of a cam which causes to rock arms 277 carrying the roller 276. Ink is supplied to the strip from a fountain 280 by a fountain roller 281 driven intermittently from shaft 325 through shaft 340, crank 343 and rocking pawl mechanism 344, messenger roller 283 swung on arms 284 by means of a cam on shaft 340, roller 282, and inking roller 271 driven continuously from shaft 325. The strip is pressed against the roller 271 by a platen roller 285 carried on a rocking arm structure 286 pivoted on the axis of roller 270. The strip is held against the moistening mechanism by means of guide rollers 297, 299, 301 carried on a plate 295 pivoted at 295P, and rollers 295R, 296 carried on a spring- pressed arm 295A. By actuating a control handle 288 on a shaft 288S, a pin 318P on an arm 318 is moved out of a notch in the structure 286, thereby moving the platen roller 285 out of contact with the inking roller. A link 319 is raised by the arm 318 and, by means of a slot 319S engaging the pin of roller 301, raises the plate 295 and all the guide rollers thereon. This movement automatically opens a switch to stop the machine. In another form, Fig. 35, for use when the images on the strip M are of the kind adapted for printing by a spirit duplicating process, the inking-mechanism is omitted and the damping-mechanism comprises the roller 1271 supplied from fountain 1272. Guide roller 1303 and knurled roller 1285 are carried on an arm 1286 pivoted on the axis of the feed roller 1270, and to withdraw the strip M from contact with the moistening roller 1271, the arm 1286 is swung clockwise by an arm 1288A on the shaft 1288S of the control lever.. Copying documents.-The master strip M, Fig. 2, has images formed thereon by means of a carbon material which, when moistened, can be transferred to a sheet. The machine is of the general construction described above, the inking- mechanism being omitted with reference to Fig. 35. The web S is not used and its feed mechanism is omitted. Sheets are fed individually to printing position from the left side of the machine by feeding mechanism described in Specification 560,597. Specifications 558,793 and 630,336 also are referred to. 703,358. Marking shoe parts. BRITISH UNITED SHOE MACHINERY CO., Ltd., and BOOT, H. W. Sept. 5, 1951 (Sept. 6, 1950], No. 21920/50. Class 100 (2). [Also in Groups VII and VIII] In a machine for performing cutting-out, punching, and marking or embossing operations on shoe parts comprising a tool-carrying plunger 33, Fig. 1, reciprocable by power-operated means towards and away from a work table 1, the table is movable manually from a forward workreceiving position to a rearward operative position, and a treadle is operable to move the plunger to a predetermined position just above the work table, a second treadle being operable for engaging a clutch to initiate operation of the power-operated means, and, if the work table is not in its operative position, an abutment member 303 on an arm 301 engages a fixed abutment member 305 to prevent the plunger 33 from being moved to its predetermined position. When the work table is moved into its operative position, a block 311, carried by one of two channel members 3 supporting the work table, moves the arm 301 to an inoperative position so as to permit movement of the plunger 33 to its predetermined position. When the plunger approaches the work table, a spigot 309 on the arm 301 enters a bore 313 in one of the channel members 3 so as to lock the work table in its operative position. The workpiece is located in a central opening in a plate 23 which is retained on the work table in spaced relationship thereto by means of spring clips 31. The plate 23 may have an auxiliary plate 27 secured thereto. The work table has secured thereto a bracket having depending arms 139 with which are associated means for supporting a roller 157 on which is carried a roll 135 of paper backing material for the workpiece. Rearward and forward movement of the work table are limited by pins 17 and 21 engaging fixed pins 19. A cutting and marking assembly 41 is supported on the plunger 33 by means of studs 43 extending from the assembly into sockets in the plunger, the studs being retained in the sockets by means of a plunger 45 which is moved